/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.iotdb.db.mpp.plan.planner.plan.node.metedata.read;

import org.apache.iotdb.commons.exception.IllegalPathException;
import org.apache.iotdb.commons.path.PartialPath;
import org.apache.iotdb.db.mpp.common.header.ColumnHeader;
import org.apache.iotdb.db.mpp.common.header.ColumnHeaderConstant;
import org.apache.iotdb.db.mpp.plan.planner.plan.node.PlanNode;
import org.apache.iotdb.db.mpp.plan.planner.plan.node.PlanNodeId;
import org.apache.iotdb.db.mpp.plan.planner.plan.node.PlanNodeType;
import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils;

import java.io.DataOutputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;

public class DevicesSchemaScanNode extends SchemaQueryScanNode {

    private final boolean hasSgCol;

    public DevicesSchemaScanNode(
            PlanNodeId id,
            PartialPath path,
            int limit,
            int offset,
            boolean isPrefixPath,
            boolean hasSgCol) {
        super(id, path, limit, offset, isPrefixPath);
        this.hasSgCol = hasSgCol;
    }

    public boolean isHasSgCol() {
        return hasSgCol;
    }

    @Override
    public PlanNode clone() {
        return new DevicesSchemaScanNode(getPlanNodeId(), path, limit, offset, isPrefixPath, hasSgCol);
    }

    @Override
    public List<String> getOutputColumnNames() {
        if (hasSgCol) {
            return ColumnHeaderConstant.showDevicesWithSgColumnHeaders.stream()
                    .map(ColumnHeader::getColumnName)
                    .collect(Collectors.toList());
        }
        return ColumnHeaderConstant.showDevicesColumnHeaders.stream()
                .map(ColumnHeader::getColumnName)
                .collect(Collectors.toList());
    }

    @Override
    protected void serializeAttributes(ByteBuffer byteBuffer) {
        PlanNodeType.DEVICES_SCHEMA_SCAN.serialize(byteBuffer);
        ReadWriteIOUtils.write(path.getFullPath(), byteBuffer);
        ReadWriteIOUtils.write(limit, byteBuffer);
        ReadWriteIOUtils.write(offset, byteBuffer);
        ReadWriteIOUtils.write(isPrefixPath, byteBuffer);
        ReadWriteIOUtils.write(hasSgCol, byteBuffer);
    }

    @Override
    protected void serializeAttributes(DataOutputStream stream) throws IOException {
        PlanNodeType.DEVICES_SCHEMA_SCAN.serialize(stream);
        ReadWriteIOUtils.write(path.getFullPath(), stream);
        ReadWriteIOUtils.write(limit, stream);
        ReadWriteIOUtils.write(offset, stream);
        ReadWriteIOUtils.write(isPrefixPath, stream);
        ReadWriteIOUtils.write(hasSgCol, stream);
    }

    public static DevicesSchemaScanNode deserialize(ByteBuffer byteBuffer) {
        String fullPath = ReadWriteIOUtils.readString(byteBuffer);
        PartialPath path;
        try {
            path = new PartialPath(fullPath);
        } catch (IllegalPathException e) {
            throw new IllegalArgumentException("Cannot deserialize DevicesSchemaScanNode", e);
        }
        int limit = ReadWriteIOUtils.readInt(byteBuffer);
        int offset = ReadWriteIOUtils.readInt(byteBuffer);
        boolean isPrefixPath = ReadWriteIOUtils.readBool(byteBuffer);
        boolean hasSgCol = ReadWriteIOUtils.readBool(byteBuffer);
        PlanNodeId planNodeId = PlanNodeId.deserialize(byteBuffer);
        return new DevicesSchemaScanNode(planNodeId, path, limit, offset, isPrefixPath, hasSgCol);
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        if (!super.equals(o)) {
            return false;
        }
        DevicesSchemaScanNode that = (DevicesSchemaScanNode) o;
        return hasSgCol == that.hasSgCol;
    }

    @Override
    public int hashCode() {
        return Objects.hash(super.hashCode(), hasSgCol);
    }

    @Override
    public String toString() {
        return String.format("DevicesSchemaScanNode-%s[Path: %s]", getPlanNodeId(), path);
    }
}
